Yarn break detector

ABSTRACT

A YARN BREAK DETECTOR SUITABLE FOR YARNS HAVING TENSIONS DOWN TO 0.1 GRAM AND COMPRISING A BODY PROVIDED WITH A PASSAGEWAY, A PIN EXTENDING INTO SAID PASSAGEWAY SO AS TO BE MOVABLE LONGITUDINALLY THEREIN FROM A WITHDRAWN POSITION TO A FORWARD POSITION, SAID PIN BEING PROVIDED WITH A YARN GUIDING SURFACE, A MAGNET CONNECTED TO THE END OF SAID PIN WITHIN SAID PASSAGEWAY SO AS TO BE MOVABLE THEREWITH, A MAGNETICALLY ACTUATED SWITCH POSITIONED WITHIN SAID BODY AT A LOCATION ADJACENT THE MAGNET WHEN SAID PIN IS IN ONE OF SAID WITHDRAWN OR FORWARD POSITIONS, AND AN ELECTRICALLY ACTUATED INDICATOR WHOSE CIRCUIT IS OPENED OR CLOSED BY SAID MAGNETICALLY ACTUATED SWITCH, WHEREBY WHEN A YARN RUNS OVER THE GUIDE SURFACE OF SAID PIN THE TENSION IN SAID YARN HOLDS SAID PIN AND MAGNET IN ONE OF SAID TWO POSITIONS AND THE MAGNETIC SWITCH AND INDICATOR ARE IN PREDETERMINED OPERATING CONDITIONS, AND UPON A BREAK IN THE YARN THE RELEASE TO THEIR SECOND POSITIONS, THE MAGNETIC SWITCH AND THUS THE INDICATOR CHANGE THEIR OPERATING CONDITIONS SO AS TO GIVE AN INDICATION OF THE YARN BREAK.

DEFENSIVE PUBLICATION UNITED STATES PATENT AND TRADEMARK OFFICEPublished at the request of the applicant or owner in accordance withthe Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of DefensivePublication applications are identified by distinctly numbered seriesand are arranged chronologically. The heading of each abstract indicatesthe number of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications-are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent and Trademark Ofiice makes noassertion as to the novelty of the disclosed subject matter.

PUBLISHED MARCH 4, 1975 A yarn break detector suitable for yarns havingtensions down to 0.1 gram and comprising a body provided with apassageway, a pin extending into said passageway so as to be movablelongitudinally therein from a withdrawn position to a forward position,said pin being provided with a yarn guiding surface, a magnet connectedto the end of said pin within said passageway so as to be movabletherewith, a magnetically actuated switch positioned within said body ata location adjacent the magnet when said pin is in one of said withdrawnor forward positions, and an electrically actuated indicator whosecircuit is opened or closed by said magnetically actuated switch,whereby when a yarn runs over the guide surface of said pin the tensionin said yarn holds said pin and magnet in one of said two positions andthe magnetic switch and indicator are in predetermined operatingconditions, and upon a break in the yarn the release to their secondpositions, the magnetic switch and thus the indicator change theiroperating conditions so as to give an indication of the yarn break.

March 4, 1975 1". J. STRAWSER T932903 YARN BREAK DETECTOR Original FiledJune 9, 1971 En 20/ Li '7 -'22 30 24 INVENTOR THOMA 8 J. STRA WSER

